Half to curtis g



(No Model.)

J. W. NEBERGALL.

RAILROAD GATE.

Patented Mar. A

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With ra'rns JAMES W. NEBERGALL, OF PRAIRIE CREEK, INDIANA, ASSIGNOR OFONE- HALF TO CURTIS G. THOMAS, OF SAME PLACE.

RAI LROAD-GATE.

SPECIFICATION forming part of Letters Patent NO. 399,624, dated March12, 1889.

Application filed December 3, 1888. $eria1No.292,4-98. (No model.)

To (all whom it may concern:

ie it known that I, JAMES \V. NEBERGALL, a citizen of the United States,and a resident of A;

Prairie Creek, in the county of Vigo and State of Indiana, have inventedcertain new and useful Improvements in Railroad-Gates; and I do declarethe following to be a full, clear, and. exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same,

reference being had to the accompanying drawings, and to letters orfigures of reference marked thereon, which form a part of thisspecification.

Figure 1 of the drawings is a side view of the invention, showin )artsin section. Fi

2 is a plan view.

This invention has relation to railroadgates; and it consists in theconstruction and novel combination of devices, as hereinafter set forth,and pointed out in the appended claim.

In. the accompanying drawings, the letter A designates the rails of thetrack; and 13, the gate, having at its lower end the journals 0 andcarrying the segment-gear (Z.

E represents a rack which engages the segment-gear (I of the gate. Thisrack is secured between the piston-rods f, which extend in eachdirection therefrom parallel with the track-rail. The air-cylinders G Gare secured alongside the track in front and in rear of the rack, and ineach cylinder G is a piston, II, by the movement of which the gate isoperated through the medium of the rack and segmentgcar.

Pipes M ill, alongside the track, lead from the horizontal cylinders GG, respectively, to the upright air-cylii'rders N N, in which are theplunger-pistons V V, to the upper ends of which are secured thepressure-heads K K, which rise slightly above the track-rails when thepistons are in normal position.

The power employed is air. \Vhcn a train approaches the gate, the wheelsforce down the pressurehead K and the piston in the cylinder Ncompresses the air therein and in the pipe on and cylinder G, wherebythe rack-piston II is forced over, moving the rack longitudinally andturning the segment gear, whereby the gate is revolved downward to thetraclelevel. air-pressure is relieved and the gate is raised by thegravitation of the weight connected thereto.

Having d escribed this invention, what I claim, and desire to secure byLetters Patent, 1s

The pivoted railroad-gate having a segmentgear and weight secured to itspivotal portion, in combination with a reciprocating rack, a piston-rodand piston attached to the rack, a horizontal air-cylinder, an uprightaircylinder, piston, and pressure-head rising above the track, and anair-pipe connecting the horizontal and upright cylinders, substantiallyas specified.

In testimony whereof I affix my signature in presence of 1wo witnesses.

JAMES \V. NEBERGALL.

Vitnesses:

MARTIN HOLLINGER, Smnon F. STRoLE.

After the train has passed the

